CN210141891U

CN210141891U - Vortex shedding flowmeter convenient to maintain

Info

Publication number: CN210141891U
Application number: CN201921059008.XU
Authority: CN
Inventors: 王春华; 孟祥阳
Original assignee: Dalian Shanhai Electronic Co Ltd
Current assignee: Dalian Shanhai Electronic Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-13
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a vortex shedding flowmeter convenient to maintenance, including measurement main part and casing, the inside both sides of casing are responsible for fixed mounting through the air guide all have the measurement main part, and the air guide is responsible for and goes up fixed mounting and have manual valve, the inside fixed mounting of casing has two sets of rolling up the pole, the equal fixed mounting in both sides of rolling up the pole has the installation cavity, the inside of installation cavity is fixed mounting respectively has first filter screen and second filter screen, install cavity and air guide and be responsible for between through three air guide auxiliary ducts of group intercommunication. The utility model discloses the casing that sets up not only can be better protects the flowmeter, the effectual condition of avoiding or reducing the flowmeter and destroyed by outdoor environment and external personnel, the installation cavity of putting makes the flowmeter can be better multiple impurity of gas block and filter through the filter screen, the air guide auxiliary pipe and the air guide person in charge of avoiding the flowmeter to measure the condition of misaligning, convenience when having improved the maintenance, the practicality is strong, convenient to popularize and use.

Description

Vortex shedding flowmeter convenient to maintain

Technical Field

The utility model relates to a vortex flowmeter technical field specifically is a vortex flowmeter convenient to maintenance.

Background

The vortex street flowmeter is a speed type flow meter which is manufactured by using a piezoelectric crystal or a differential capacitor as a detection part according to a Karman vortex street theory and utilizing a natural vibration principle of fluid.

Although the existing vortex shedding flowmeter achieves basic operation performance, the following defects still exist: 1. the whole protection nature of traditional flowmeter is relatively poor, and long-time operation leads to the device to suffer environment and artificial destruction easily, has reduced the life of flowmeter, 2, traditional flowmeter's filterability is relatively poor simultaneously, and long-time operation leads to its condition of misaligning easily, makes its maintenance operation for the staff bring more inconvenience, has reduced the practicality, consequently need improve to this to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vortex street flowmeter convenient to maintenance is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a vortex shedding flowmeter convenient to maintenance, includes measurement main part and casing, the inside both sides of casing are all responsible for fixed mounting through the air guide and are measured the main part, and the air guide is responsible for and is gone up fixed mounting and have manual valve, the inside fixed mounting of casing has two sets of rolling rod, the equal fixed mounting in both sides of rolling rod has the installation cavity, the inside of installation cavity is fixed mounting respectively has first filter screen and second filter screen, install the cavity and the air guide and be responsible for between through three air guide auxiliary duct intercommunications of group.

Preferably, the two ends of the mounting cavity are both fixedly provided with connectors which are matched for use.

Preferably, the inner wall of the shell is provided with a foam layer, and the back of the shell is provided with a through hole.

Preferably, the metering main body and the air guide main pipe are fixedly installed through butt joint plates, and rubber pads are arranged between the butt joint plates.

Preferably, the mesh aperture of the first screen is smaller than the mesh aperture of the second screen.

Preferably, the front surface of the shell is movably provided with a protective door, and the protective door is provided with a mesh window.

Compared with the prior art, the beneficial effects of the utility model are that: compared with the traditional vortex street flowmeter, the vortex street flowmeter convenient to maintain has the advantages that the arranged shell can better protect the flowmeter, effectively avoid or reduce the condition that the flowmeter is damaged by outdoor environment and external personnel, simultaneously can better ensure the cleanness of the flowmeter, so that workers can better perform maintenance operation, the practicability of the flowmeter is improved, the arranged installation cavity enables the flowmeter to better block and filter various impurities of gas through the filter screen, the condition that a sensing head on the flowmeter is crystallized is effectively avoided or reduced, the accuracy of the flowmeter during metering is ensured, the condition that the workers frequently overhaul is reduced, the practicability is improved, the arranged gas guide auxiliary pipe and the gas guide main pipe can better perform repeated gas guide fluctuation on the gas, thereby effectively driving the reciprocating fluctuation of gas moisture, thereby form the pulsation, avoid the inaccurate condition of flowmeter measurement, make its staff can be when the trouble source of getting rid of the flowmeter better of maintenance, improved the convenience when overhauing, the practicality is strong, convenient to popularize and use.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic front structural view of the present invention;

fig. 3 is a schematic back view of the present invention.

In the figure: 1. a connector; 2. installing a cavity; 201. a first filter screen; 202. a second filter screen; 3. an air guide auxiliary pipe; 4. an air guide main pipe; 401. a manual valve; 5. a metering body; 501. a butt plate; 6. a housing; 601. a foam layer; 602. a protective door; 603. a mesh window; 604. a through hole; 7. and (4) rolling up the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a vortex shedding flowmeter convenient to maintain comprises a metering main body 5 and a shell 6, wherein two groups of winding rods 7 are fixedly arranged in the shell 6 through screws, the winding rods 7 can wind an operation wire of the flowmeter, mounting cavities 2 are fixedly arranged on two sides of each winding rod 7 through screws, a first filter screen 201 and a second filter screen 202 are respectively embedded in the mounting cavities 2, the mounting cavities 2 enable the flowmeter to better block and filter various impurities of gas through the filter screens, the condition that a sensing head on the flowmeter is crystallized is effectively avoided or reduced, the accuracy of the flowmeter during metering is ensured, the frequent maintenance condition of workers is reduced, the practicability is improved, the mounting cavities 2 are communicated with a gas guide main pipe 4 through three groups of gas guide auxiliary pipes 3, the gas guide auxiliary pipes 3 and the gas guide main pipe 4 can better conduct repeated gas guide fluctuation on the gas, thereby can effectually drive the reciprocal fluctuation of gaseous moisture, thereby form the pulsation, avoid the inaccurate condition of flowmeter measurement, make the trouble source that its staff can be better get rid of the flowmeter when overhauing, the convenience when overhauing has been improved, the inside both sides of casing 6 are all responsible for 4 fixed mounting through the air guide and are had a metering subject 5, and inlay on the air guide is responsible for 4 and install manual valve 401, casing 6 not only can be better protects the flowmeter, the effectual condition of avoiding or reducing the flowmeter by outdoor environment and external personnel destruction, can better guarantee the cleanliness factor of flowmeter again simultaneously, so that the staff can be better overhaul the operation, the practicality of flowmeter has been improved.

Furthermore, the two ends of the mounting cavity 2 are both fixedly mounted with connectors 1 used in a matching manner. In the embodiment, the installation cavity 2 is convenient for a worker to butt-joint and install the flowmeter through the corresponding pipeline through the connector 1, so that the operation of the flowmeter is realized.

Further, the inner wall of the housing 6 is provided with a foam layer 601, and the back of the housing 6 is provided with a through hole 604. In the embodiment, the shell 6 can better reduce the influence of the outside air temperature on the flowmeter through the foam layer 601, and the through hole 604 is used for the staff to better connect the flowmeter.

Further, the metering main body 5 and the air guide main pipe 4 are fixedly installed through a butt joint plate 501, and a rubber pad is arranged between the butt joint plates 501. In the embodiment, the installation and butt joint of the flowmeter are realized through the rubber pads on the butt joint plate 501, so that the maintenance operation of workers is more convenient and faster, and meanwhile, the rubber pads improve the sealing performance between the two.

Further, the mesh aperture of the first screen 201 is smaller than that of the second screen 202. In the embodiment, the first filter screen 201 and the second filter screen 202 are used in cooperation, so that impurities in gas can be better blocked and filtered, the filtering performance is improved, and the operation quality is ensured.

Further, a protection door 602 is movably installed on the front surface of the housing 6, and a mesh window 603 is provided on the protection door 602. In the embodiment, the protection door 602 and the mesh window 603 can not only protect the flow meter, but also ensure the stability of the flow meter during operation.

The working principle is as follows: during the operation, with the flowmeter through connector 1 and external pipeline butt joint installation, during the measurement, impurity in second filter screen 202 and first filter screen 201 to gas filters, then enters into the air guide through air guide accessory pipe 3 and is responsible for 4, detects the operation through measurement main part 5 convection current volume at last.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a vortex shedding flowmeter convenient to maintenance, includes measurement main part (5) and casing (6), its characterized in that: the inside both sides of casing (6) are all responsible for (4) fixed mounting through the air guide and are measured main part (5), and the air guide is responsible for fixed mounting on (4) and has manual valve (401), the inside fixed mounting of casing (6) has two groups to roll up pole (7), the both sides of rolling up pole (7) are all fixed mounting has installation cavity (2), the inside difference fixed mounting of installation cavity (2) has first filter screen (201) and second filter screen (202), be responsible for between (4) through three air guide auxiliary duct of group (3) intercommunication between installation cavity (2) and air guide.

2. The vortex shedding flowmeter convenient to maintain of claim 1, wherein: and the two ends of the mounting cavity (2) are fixedly provided with connectors (1) which are matched for use.

3. The vortex shedding flowmeter convenient to maintain of claim 1, wherein: the inner wall of the shell (6) is provided with a foam layer (601), and the back of the shell (6) is provided with a through hole (604).

4. The vortex shedding flowmeter convenient to maintain of claim 1, wherein: the metering main body (5) and the air guide main pipe (4) are fixedly installed through butt joint plates (501), and rubber pads are arranged between the butt joint plates (501).

5. The vortex shedding flowmeter convenient to maintain of claim 1, wherein: the mesh aperture of the first filter screen (201) is smaller than that of the second filter screen (202).

6. The vortex shedding flowmeter convenient to maintain of claim 1, wherein: the front surface of the shell (6) is movably provided with a protective door (602), and the protective door (602) is provided with a mesh window (603).